Photocatalytic nanocomposite membranes for environmental remediation

被引：4

作者：

Golmohammadi, Mahsa ^{[1
,2
]}

Alvani, Ali Asghar Sabbagh ^{[1
,2
,3
]}

Sameie, Hassan ^{[2
,4
]}

Mei, Bastian ^{[4
]}

Salimi, Reza ^{[2
,4
]}

Poelman, Dirk ^{[5
]}

Rosei, Federico ^{[6
]}

机构：

[1] Amirkabir Univ Technol, Dept Polymer Engn & Color Technol, Tehran 1591634311, Iran

[2] Amirkabir Univ Technol, Color & Polymer Res Ctr CPRC, Tehran 1591634311, Iran

[3] Stand Res Inst SRI, Karaj 31745139, Iran

[4] Univ Twente, Fac Sci & Technol, MESA Inst Nanotechnol, Enschede, Netherlands

[5] Univ Ghent, Dept Solid State Sci, Lumilab, Krijgslaan 281-S1, B-9000 Ghent, Belgium

[6] INRS Ctr Energy Mat & Telecommun, 1650 Boul Lionel Boulet, Varennes, PQ J3X 1P7, Canada

来源：

NANOTECHNOLOGY | 2022年 / 33卷 / 46期

关键词：

BiVO4; rGO; charge transfer; polymeric membrane; photocatalysis; THIN-FILM; BIVO4;

D O I：

10.1088/1361-6528/ac8682

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report the design and one-pot synthesis of Ag-doped BiVO4 embedded in reduced graphene oxide (BiVO4:Ag/rGO) nanocomposites via a hydrothermal processing route. The binary heterojunction photocatalysts exhibited high efficiency for visible light degradation of model dyes and were correspondingly used for the preparation of photocatalytic membranes using polyvinylidene fluoride (PVDF) or polyethylene glycol (PEG)-modified polyimide (PI), respectively. The surface and cross-section images combined with elemental mapping illustrated the effective distribution of the nanocomposites within the polymeric membranes. Photocatalytic degradation efficiencies of 61% and 70% were achieved after 5 h of visible light irradiation using BiVO4:Ag/rGO@PVDF and BiVO4:Ag/rGO@PI (PEG-modified) systems, respectively. The beneficial photocatalytic performance of the BiVO4:Ag/rGO@PI (PEG-modified) membrane is explained by the higher hydrophilicity due to the PEG modification of the PI membrane. This work may provide a rational and effective strategy to fabricate highly efficient photocatalytic nanocomposite membranes with well-contacted interfaces for environmental purification.

引用

页数：10

共 43 条

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